Leaf-Shaped Nanostrip Fed Graphene Plasmonic Nano-Antenna for Optical Near-Field Applications

Shekhara Kavitha; Ashish Singh; Ravi Shankar Saxena; Mohammad Aneesh; Kamakshi Kumari

doi:10.4028/p-AQH1sG

Paper Titles

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A Study on NbN Thin Films as Resistive Films Prepared via Reactive Magnetron Sputtering
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Simulations of Physical Properties of Alkoxy-Azoxybenzene Liquid Crystalline Homologous Series and Comparison with Experimental Results
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Leaf-Shaped Nanostrip Fed Graphene Plasmonic Nano-Antenna for Optical Near-Field Applications
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 995Leaf-Shaped Nanostrip Fed Graphene Plasmonic...

Leaf-Shaped Nanostrip Fed Graphene Plasmonic Nano-Antenna for Optical Near-Field Applications

Abstract:

The manuscript investigates the leaf-shaped nanostrip-fed graphene plasmonic nanopatch on a silicon dioxide surface for optical near-field applications. The dispersion properties of graphene and silicon dioxide are demonstrated through Drude and Lorentz modeling to examine the suitability of the materials for the plasmonic nano-antenna design. The nano-antenna parameters T_SUB(substrate thickness), W (width of the nanostrip feed line) and R_L (nano-antenna size) are adjusted to modify the plasmonic resonance frequency from 7.9 THz to 40.9 THz. The proposed leaf-shaped nanostrip-fed graphene plasmonic nanopatch exhibits a reflection of -43.27 dB at 36 THz with a gain of 8.19 dB at T_SUB =125 nm, W = 40 nm and R_L = 50 nm.

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Periodical:

Key Engineering Materials (Volume 995)

Pages:

59-66

DOI:

https://doi.org/10.4028/p-AQH1sG

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Online since:

December 2024

Authors:

Shekhara Kavitha, Ashish Singh*, Ravi Shankar Saxena, Mohammad Aneesh, Kamakshi Kumari

Keywords:

Gain, Graphene, Leaf-Shaped, Nano-Antenna Drude, Nanostrip, Optical Near-Field, Plasmonic, Reflection Coefficient, Silicon Dioxide

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